<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
<script>
    var obj = {name:'王伟', age:26,sex:true,hobby:['打篮球','跑步','敲代码']}
    function copy(obj){
        var obj1 =  Array.isArray(obj)?[]:{}
         for(var key in (obj)){
            if(typeof obj[key] === 'object'){
                obj1[key] = copy(obj[key])
            }else{
                obj1[key] = obj[key]
            }
         }
         return obj1
    }
</script>